WriteASM fuction?

Heard from a friend about it but he forces me to find out myself what it is..Anyone wanna help me what it is and how can it help me making a hack?

void WriteAsm( void* pxAddress, BYTE *code, int size )
{
unsigned long Protection;
VirtualProtect((void*)pxAddress, size, PAGE_READWRITE, &Protection);
memcpy((void*)pxAddress, (const void*)code, size);
VirtualProtect((void*)pxAddress, size, Protection, 0);
}

^^ its all I will show you, learn C++ and ASM and you will get it

aww man not cool...cmon ok so just tell me that will it give me access to real PX items??? and can i use em without having a real PX?